Built around Harley-Davidson's custom - cruiser motorcycle platform, the 2018 Harley-Davidson Softail Breakout pairs a 1745 cc (106.5 cu in) air-cooled v2, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 86 HP (62.8 kW) at 5,000 rpm while maximum torque reaches 145 Nm (107 lb-ft) at 3,000 rpm, transferring power to the rear wheel through a 6-speed gearbox and belt final drive. With a specific output of 49.3 HP per liter and a 2,000 rpm working window between peak torque (3,000 rpm) and peak power (5,000 rpm), the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.
On the scales, the Softail Breakout measures 305 kg (672 lbs) wet (curb), translating to a power-to-weight ratio of 0.28 HP/kg (3.55 kg per horsepower). Rider ergonomics and chassis geometry center around a 665 mm (26.2 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,695 mm (66.7 in) wheelbase engineered for planted straight-line stability. The 13.2-liter (3.5 US gal) fuel tank paired with a rated consumption of 5.5 L/100 km provides an estimated theoretical range of roughly 240 km (149 miles) between fill-ups.
Within MotoLibrary's Harley-Davidson archive, this model family spans 6 indexed model years from 2014 to 2019, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
49.3 HP/L
Power-to-Weight
0.28 HP/kg (3.55 kg/HP)
Power Band Window
3,000–5,000 rpm
Theoretical Range
~240 km (149 mi)
Engine
Displacement1745.0 ccm (106.48 cubic inches)
Engine TypeV2, four-stroke
Engine DetailsMilwaukee-Eight® 107, optional 114 Big Twin.
Power86.0 HP (62.8 kW)) @ 5000 RPM
Torque145.0 Nm (14.8 kgf-m or 107.0 ft.lbs) @ 3000 RPM
Compression10.0:1
Bore x Stroke100.0 x 111.1 mm (3.9 x 4.4 inches)
Fuel SystemInjection. Electronic Sequential Port Fuel Injection
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
CoolingAir
Transmission
Gearbox6-speed
Final DriveBelt (final drive)
ClutchMulti-plate with diaphragm spring in oil bath
DrivelineChain, 34/46 ratio primary drive
Performance
Fuel Consumption5.50 litres/100 km (18.2 km/l or 42.77 mpg)
Greenhouse Gases127.6 CO2 g/km. (CO2 - Carbon dioxide emission)
Exhaust2-into-2 staggered; catalyst in muffler
Chassis
Rake34.0°
Trail145 mm (5.7 inches)
Front SuspensionTelescopic fork
Rear SuspensionTwin shocks
Wheelbase1695 mm (66.7 inches)
Ground Clearance115 mm (4.5 inches)
Wheels & Brakes
Front Tyre130/60-B21
Rear Tyre240/40-R18
Front BrakesSingle disc. ABS. 4-piston
Rear BrakesSingle disc. ABS. 2-piston
WheelsGloss black, Gasser II cast aluminum
Dimensions & Weight
Dry Weight294.0 kg (648.2 pounds)
Weight incl.305.0 kg (672.4 pounds)
Power/Weight0.2925 HP/kg
Seat Height665 mm (26.2 inches) If adjustable, lowest setting.
Overall Length2370 mm (93.3 inches)
Fuel Capacity13.20 litres (3.49 US gallons)
Oil Capacity3.30 litres (3.49 US quarts)
Other
StarterElectric
Color OptionsVivid Black, Black Tempest, Twisted Cherry, Silver Fortune, Legend Blue Denim
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.